2013 Lexus GS350 flat tire

GS350_U (OM30C34U)
2354-5. Using the driving support systems
4
Driving
●When driving on winding roads or roads that are uneven
●When driving on rough or unpaved roads
■When changing the tires
Depending on the tires used, sufficient performance may not be maintainable.
■Warning messages for LKA
Warning messages are used to indicate a system malfunction or to inform the driver
of the need for caution while driving. (P. 700, 708)
CAUTION
■Before using the LKA system
Do not rely solely on the LKA system. The LKA system does not drive the vehicle
automatically, nor does it reduce the amount of care you need to take. As such, the
driver must always assume full responsi bility for understanding his/her surround-
ings, for operating the steering wheel to correct the driving line, and for driving
safely.
Inappropriate or negligent driving could lead to an accident.
■To avoid operating the LKA by mistake
Switch the LKA off using the “LKA” switch when not in use.
■Situations unsuitable for LKA
Do not use LKA in any of the following situations.
Otherwise, the system may not function co rrectly and could result in an accident.
●When driving with snow tires, tire ch ains, a spare tire, or similar equipment
●When the tires have been excessively worn, or when the tire inflation pressure is
low.
●When there are objects or structures along the roadside that might be misinter-
preted as lane markers (such as guardrails, curb, reflector posts, etc.)
●When driving on snowy roads
●When pavement lane markers are difficult to see due to rain, snow, fog, etc.
●When there are visible lines on the pavement from road repairs, or if the remains
of old lane markers are still visible on the road
●When driving on slippery roads, such as those covered with rain, ice or snow
●When driving in a lane other than the driving or passing lanes on a freeway or
highway
●When driving on a road with lane closures due to maintenance, or when driving
in a temporary lane
●When emergency towing

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GS350_U (OM30C34U)
4-5. Using the driving support systems
CAUTION
■When using the rear view monitor system
When backing up, be sure to check visually behind and all around the vehicle
before proceeding.
Observe the following precautions to avoid an accident that could result in death
or serious injuries.
●The rear view monitor system is a supplemental device intended to assist the
driver when backing up. Never depend on the rear view monitor system entirely
when backing up. Always make sure your intended path is clear.
Use caution, just as you would when backing up any vehicle.
●Never back up while looking only at the screen.
The image shown on the screen may differ from the actual state, and you could
collide with another vehicle or obstacles if backing up looking only at the screen,
possibly causing an accident. When backing up, be sure to check in front of and
behind the vehicle, both directly and with mirrors.
●Be sure to back up slowly, depressing the brake pedal to control vehicle speed.
●The instructions given are only guidelines.
When and how much to turn the steering wheel will vary according to traffic con-
ditions, road surface conditions, vehicle condition, etc. when parking. It is neces-
sary to be fully aware of this before using the rear view monitor system.
●When parking, be sure to check that the parking space will accommodate your
vehicle before maneuvering into it.
●Do not use system in the following cases:
• On icy or slick road surfaces, or in snow
• When using tire chains or the compact spare tire
• When the trunk lid is not closed completely
• On roads that are not flat or straight, such as curves or slopes.
●In low temperatures, the screen may darken or the image may become faint. The
image could distort when the vehicle is moving, or you may become unable to
see the image on the screen. Be sure to check direct visually and with mirror all
around the vehicle before proceeding.
●If the tire sizes are changed, the position of the fixation guide lines displayed on
the screen may change.
●The camera uses a special lens. The di stances between objects and pedestrians
that appear in the image displayed on th e screen will differ from the actual dis-
tances. ( P. 2 5 4 )

GS350_U (OM30C34U)
2754-5. Using the driving support systems
4
Driving
CAUTION
■Replacing tires
Make sure that all tires are of the specified size, brand, tread pattern and total load
capacity. In addition, make sure that the tires are inflated to the recommended tire
inflation pressure level.
The ABS, TRAC and VSC systems will not function correctly if different tires are
installed on the vehicle.
Contact your Lexus dealer for further information when replacing tires or wheels.
■Handling of tires and the suspension
Using tires with any kind of problem or modifying the suspension will affect the
driving assist systems, and may cause a system to malfunction.

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GS350_U (OM30C34U)
5-7. Other interior features
■Stolen Vehicle Location
If your vehicle is stolen, Safety Connect can work with local authorities
to assist them in locating and recov ering the vehicle. After filing a police
report, call the Safety Connect response center at 1-800-25-LEXUS
(1-800-255-3987) and follow the pr ompts for Safety Connect to ini-
tiate this service.
In addition to assisting law enforcemen t with recovery of a stolen vehi-
cle, Safety-Connect-equipped vehicle location data may, under certain
circumstances, be shared with third parties to locate your vehicle. Fur-
ther information is available at Lexus.com.
■Emergency Assistance Button (“SOS”)
In the event of an emergency on th e road, push the “SOS” button to
reach the Safety Connect response center. The answering agent will
determine your vehicle’s location, assess the emergency, and dispatch
the necessary assistance required.
If you accidentally press the “SOS” button, tell the response-center agent that
you are not experiencing an emergency.
■Enhanced Roadside Assistance
Enhanced Roadside Assistance adds GPS data to the already included
warranty-based Lexus roadside service.
Subscribers can press the “SOS” button to reach a Safety Connect
response-center agent, who can help with a wide range of needs, such
as: towing, flat tire, fuel delivery, etc. For a description of the Roadside
Assistance services and their limitati ons, please see the Safety Connect
Terms and Conditions, which are available at Lexus.com.

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GS350_U (OM30C34U)
Maintenance and care6
6-1. Maintenance and care Cleaning and protecting the vehicle exterior................. 594
Cleaning and protecting the vehicle interior ..................598
6-2. Maintenance Maintenance requirements .... 601
General maintena nce ..............604
Emission inspection and maintenance (I/M)
programs ................................... 608
6-3. Do-it-yourself maintenance Do-it-yourself service precautions ................................609
Hood ................................................. 612
Positioning a floor jack ...............613
Engine compartment .................615
Tires .................................................. 629
Tire inflation pressure ............... 639
Wheels ........................................... 642
Air conditioning filter ............... 644
Electronic key battery .............. 646
Checking and replacing fuses ..............................................648
Headlight aim ................................661
Light bulbs..................................... 663

GS350_U (OM30C34U)
6076-2. Maintenance
6
Maintenance and care
Ve h i c l e e x t e r i o r
ItemsCheck points
Doors/trunk• Do the doors/trunk operatesmoothly?
Engine hood• Does the engine hood lock systemwork properly?
Fluid leaks
• There should not be any signs of fluidleakage after the vehicle has been
parked.
Ti r e s
• Is the tire inflation pressure correct?
• The tires should not be damaged orexcessively worn.
• Have the tires been rotated accord- ing to the maintenance schedule?
• The wheel nuts should not be loose.
CAUTION
■If the engine is running
Turn the engine off and ensure that there is adequate ventilation before performing
maintenance checks.

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GS350_U (OM30C34U)
6-3. Do-it-yourself maintenance
Headlight aim( P. 6 6 1 )• Phillips-head screwdriver
Light bulbs ( P. 6 6 3 )
• Bulb with same number and wattage
rating as original
• Phillips-head screwdriver
•Flathead screwdriver
•Wrench
Radiator and condenser ( P. 6 2 2 )
Tire inflation pressure ( P. 6 3 9 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( P. 6 2 8 )
• Water or washer fluid containing anti-
freeze (for winter use)
• Funnel (used only for adding water or washer fluid)
ItemsPa r t s a n d t o o l s

GS350_U (OM30C34U)
6316-3. Do-it-yourself maintenance
6
Maintenance and care
Your vehicle is equipped with a tire pressure warning system that uses tire
pressure warning valves and transmitters to detect low tire inflation pres-
sure before serious problems arise.
Vehicles without the tire inflation pressure display function
If the tire pressure drops below a predetermined level, the driver is
warned by a warning light. ( P. 690)
Vehicles with the tire inflation pressure display function
●If the tire pressure drops below a predetermined level, the driver is
warned by a screen display and a warning light. ( P. 713)
●The tire pressure detected by the tire pressure warning system can be
displayed on the multi- information display. (P. 8 5 )
◆Installing tire pressure warning valves and transmitters
When replacing tires or wheels, tire pressure warning valves and trans-
mitters must also be installed.
When new tire pressure warning valves and transmitters are installed,
new ID codes must be registered in the tire pressure warning computer
and the tire pressure warning system must be initialized. Have tire pres-
sure warning valve and transmitter ID codes registered by your Lexus
dealer. ( P. 633)
◆Initializing the tire pressure warning system
■The tire pressure warning system must be initialized in the following
circumstances:
●When rotating the tires.
●When the tire inflation pressure is changed such as when changing
traveling speed or load weight.
When the tire pressure warning system is initialized, the current tire
inflation pressure is set as the benchmark pressure.
Tire pressure warning system